请以“Sharks in Danger”为题，设计一张海报来呼吁大家从自身做起，保护鲨鱼。
要点提示：
人类吃鱼翅导致大量鲨鱼被捕杀
我们应以身作则，拒绝吃鱼翅
告诫人们；“没有买卖，就没有杀戮”
提示词汇：shark fin 鱼翅 become extinct濒临灭绝
No trading,no killing “没有买卖，就没有杀戮”
要求：语意通顺，逻辑清晰。70词左右（开头和结尾已给出，不计入总数）
Sharks in Danger
Today,more and more sharks are being killed.
Let’s do something together to save the sharks.
Sharks in Danger
Today ,more and more sharks are being killed .Sharks are facing the problem of becoming extinct.Why do people kill them? One of the biggest problems is their fins.In many countries ,shark fin soup is an expensive dish.Fishermen keep hunting sharks for their fins and sell them for money .It’s not a story ,it’s true !So,what should we do? Don’t eat shark fins and tell the truth to our friends and families .Remember :No trading ,no killing.
Let’s do something together to save the sharks!
题目分析：这是一篇话题作文，本文所给材料要点清晰，要求明确，话题内容贴近生活实际。动笔前要认真审题，勾勒要点，并适当发挥。行文中要注意人称、时态的变化及主谓一致问题。同时注意上下文联系紧密，符合逻辑关系。
【亮点说明】这篇短文涵盖了题目要求的所有要点内容，表达准确，意思连贯，符合逻辑。在文章的结构组织上很好地使用了多种句式，使文章自然流畅。同时，使用了一些的固定句式和短语，如：keep doing、tell the truth、No trading ,no killing等，这为文章增色不少。学习中注意积累，牢记一些常用句式及短语，写作时就可以适当引用，使文章的表达更有逻辑性，更富有条理。